Following an email from Grey a while ago I went searching for an article by richard marsh (Audio Magazine) from the seventies. I believe this is it:
http://capacitors.com/pickcap/pickcap.htm
Thanks for the tip Grey I got a lot out of reading this article (I will never consider ceramics for by-passing, or anything else audio related, again). I believe others on the forum will to.
Dan
http://capacitors.com/pickcap/pickcap.htm
Thanks for the tip Grey I got a lot out of reading this article (I will never consider ceramics for by-passing, or anything else audio related, again). I believe others on the forum will to.
Dan
Dan,
Aye, that's the one. I still remember when I got that issue of Audio (I had a subscription back then)--it was a shocker, because I had always heard that passive components *weren't* audible. (This was back when I still thought distortion specs counted for something, too, which goes to show you that I still had a lot to learn...) Later, I discovered that folks who *listened* to stereos had been saying so for a while, but I had never heard of any such thing.
A tip of the hat to Richard Marsh, (I believe Jung was involved somewhere in the process, too) for laying it out so clearly. I know it's sure made a difference in my system over the years. Coincidentally, I'm about to try a bank of Solen (metallized polypropylene) caps on each of the Aleph 2s I built. I'll be curious as to how much difference they make in detail retrieval, as that's one area where my tube amps still outperform the Alephs. So far, except as noted elsewhere--the input network, and omission of C6 (I think that's the right one)--I've been using the Alephs stock; as laid out in the service manuals. My tube amps have scads of film caps (Solen & MIT), so I decided that I'd level the playing field; give Nelson's circuit a chance at some of the good stuff.
Grey
Aye, that's the one. I still remember when I got that issue of Audio (I had a subscription back then)--it was a shocker, because I had always heard that passive components *weren't* audible. (This was back when I still thought distortion specs counted for something, too, which goes to show you that I still had a lot to learn...) Later, I discovered that folks who *listened* to stereos had been saying so for a while, but I had never heard of any such thing.
A tip of the hat to Richard Marsh, (I believe Jung was involved somewhere in the process, too) for laying it out so clearly. I know it's sure made a difference in my system over the years. Coincidentally, I'm about to try a bank of Solen (metallized polypropylene) caps on each of the Aleph 2s I built. I'll be curious as to how much difference they make in detail retrieval, as that's one area where my tube amps still outperform the Alephs. So far, except as noted elsewhere--the input network, and omission of C6 (I think that's the right one)--I've been using the Alephs stock; as laid out in the service manuals. My tube amps have scads of film caps (Solen & MIT), so I decided that I'd level the playing field; give Nelson's circuit a chance at some of the good stuff.
Grey
Dan
Thanks for posting this. It is interesting reading and has made me more careful in my choice of caps.
Phil.
Thanks for posting this. It is interesting reading and has made me more careful in my choice of caps.
Phil.
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